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1551AS720-1 — COUPLING,PIPE,SLIP JOINT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1551AS720-1: COUPLING,PIPE,SLIP JOINT.

The COUPLING,PIPE,SLIP JOINT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, special_features: USED ON NSN 3655-01-281-7747, style_designator: RIGID, SHORT CENTER WRENCHING FACILITY, nominal_thread_size: 0.250 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-302-4925, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
1551AS720-1
NSN: 4730-01-302-4925
NIINs: 013024925, 013107774
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresUSED ON NSN 3655-01-281-7747
style_designatorRIGID, SHORT CENTER WRENCHING FACILITY
nominal_thread_size0.250 INCHES ALL ENDS IN
fsc_application_dataEONS PSA UNIT
nominal_overall_length1.125 INCHES IN
thread_series_designatorNPT ALL ENDS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN4730-01-302-4925
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1551AS720-1 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.125 INCHES IN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: RIGID, SHORT CENTER WRENCHING FACILITY
•
NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN
•
MATERIAL: STEEL COMP 304 OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NOMINAL OVERALL LENGTH1.125 INCHES IN
CRITICALITY CODE JUSTIFICATIONZZZY
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORRIGID, SHORT CENTER WRENCHING FACILITY
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
SPECIAL FEATURESUSED ON NSN 3655-01-281-7747
MATERIALSTEEL COMP 304 OVERALL
THREAD SERIES DESIGNATORNPT ALL ENDS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSSPECIAL CLEANING FOR LOX SERVICE IAW 1552AS201
SUBSTITUTES & CROSS-REFERENCES 1
1551AS720Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1551AS720-1?
1551AS720-1 is a COUPLING,PIPE,SLIP JOINT.
What parts can replace 1551AS720-1?
There is 1 known substitute for 1551AS720-1: 1551AS720. Substitute compatibility should be verified for your specific system.
What is the NSN for 1551AS720-1?
1551AS720-1 is cataloged in the U.S. Government catalog under NSN 4730-01-302-4925. This indicates validated use in U.S. government and defense supply chains.
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